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The y sets the upper line or the lower line of the window.
This function is valid within the horizontal mode.
4-17
4-17. Clear display screen and clear string mode
All the display characters will be cleared, and the string mode will be cancelled.
4-18
4-18. Clear current line and cancel string mode
The current line is cleared, and the string mode is cancelled.
4-19
4-19. Brightness adjustment
Adjust the brightness of the vacuum fluorescent display.
When n=3, brightness=70%
When n=4, brightness=100%
4-20
4-20. Set cursor ON or OFF
When n=0, cursor is OFF
When n=1, cursor is ON
